Abrading-machine.



.No. 897,408 PATENTED SEPT. 1, 1908.

A. W. ROOVERS. ABRADING MACHINE.

, APPLIOATION FILED AUG.19, 1905.

2 SHEETS-SHEET 1.

w I H I I om No. 897,408. PATENTED SEPT. 1, 1908.

A. W; ROOVERS'.

ABRADING MACHINE.

APPLICATION FILED AUG. 19. 1905.

2 SHEETS-SHEET 2.

II A:

ALFRED W. ROOVERS, OF BROOKLYN, NEW YORK.

ABRADING-MACHINE Specification of Letters Patent.

Patented Sept. 1, 1908.

Application filed August 19, 1905. Serial No. 274,878.

To all whom it may concern:

Be it known that I, ALFRED W. Roovnns, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Abrading-Machines, ofwhich the following is a specification.

My present invention relates to an improved abrading machine, theconstruction and advantages of which will be hereinafter set forth,reference being had to the annexed drawings, wherein:

Figure 1 is a perspective view of the machine, partly broken away, withthe clamp ing member or movable bed in its lowered position; Fig. 2aside elevation, portions being broken away to show the interior of themechanism, with the bed or clamping member in its elevated position;Fig. 3 a transverse vertical sectional view, on the line 33 of Fig. 2;Fig. 4 a transverse sectionalview, on the line 44 of Fig. 2; Fig. 5 aperspective view of the slide or file-carrier; Fig. 6 a longitudinalsectional view therethrough; Fig. 7 a plan view of a name-plate withraised letters thereon; Fig. 8 a similar view, showing the plate afterthe upper surface or coating has been removed from the letters; and Fig.9 a perspective view of the file in its preferred form, detached fromits holder.

Name-plates such as that shown in Fig. 7 have heretofore been made bymachines patented. to me jointly with Alexander H. Roovers, the strip ofmetal of which the plates were formed being of aluminum or like metal,and said plate when completed having a surface of the same appearancethroughout. Under the present construc tion I propose to make the outerface of the plate of a color contrasting withthe body of the metal, asfor instance, blue and to thereafter remove the upper face of theletters, or the coating therefrom, so that the body of the plate and theletters will be of contrasting colors.

The object of the present invention is to produce a machine which willreadily remove the upper face of the letters after the plate has beenformed in the patented machine or otherwise.

referring to the drawings, A denotes the bed or main body of themachine, provided with lateral extensions B by which it may be securedto any suitable support, as for instance, to the side of the machine inwhich the name-plates are made.

Extending along the upper outer face of the body A is a rib O, in whichis formed a way or channel D. A face plate E, which is secured to thebody A by screws F and dowelpins G, with intermediate spacing-blocks Hat each end thereof, is provided with a similar groove or channel I.Said grooves or channels D and I are arranged diametrically oppositeeach other and form a way for the reception of the laterally-extendingwings J of a file-carrier K. This carrier is provided with a roundedhandle L, and with a groove or channel in its under face, in which ismounted a file M. The file is held in proper position by screws N and anintermediate adjusting screw 0, the latter bearing upon the upper faceof the file between the screws N and serving to determine the properposition of the file with reference to the carrier.

The preferred form of file is shown in Fig. 9. It is made slightlyhigher at its midlength than at the ends, the latter receding or fallingback from the plane of work and being rounded. The teeth have their endsarranged to point from the midlength of the file toward the oppositevends thereof. By reason of the central portion of the file being madehigher than the ends, and the teeth being set in opposite directionsfrom the cen ter toward the ends, one set of teeth will abrade theexposed or raised surface and the other set will tend to burnish thatportion which has been acted upon by the teeth which abraded thesurface.

As will be seen upon reference more particularly to Figs. 1 and A, thefile occupies a position in an opening formed between the adjacent facesof the bed A and the plate E, the lower face of the file standing inalinement with the upper edge of a movable bed or clamping member P.This edge is flat and the name-plate, designated by the letter Q, reststhereon, as best shown in Fig. 4, and when said member P is elevated theplate is clamped between it, the under face of the rib O and acorresponding projection R formed upon the face plate E.

The clamping member is of the form best shown in Fig. 1, having reducedends S, S which, when said member is lowered, rest upon pins T, T,extending outwardly from the bed A. Plates U, U, secured to the bed orotherwise interposed between the face plate and the bed, serve toprevent endwise movement of the clamping member P. Said clamping memberis provided with a nose or projection V which stands in alinement withthe rounded face of a cam W secured to or formed integrally with ahandle or lever X. The lever is normally held in the position shown inFig. 2 by a spring Y, one end of which is secured to the lever and itsopposite end to a cap or shell Z which surrounds the spring and ismounted upon the outer end of an axle or support A on which the camlever is fulcrumed. Said lever is provided with a lug or projection B,which coacts with a stud or pin 0 secured to the base or bed A toprevent the lever from being thrown too far in a reverse direction. Thepin C also serves to limit the upward movement of the cam lever, so thatwhen the parts are in the positions shown in Fig. 2 the lever will belocked against the face of the nose or projection V, thus holding theclamping member P in its elevated position.

In operation the handle or lever X is drawn downward so that theclamping member P will gravitate or move down into the position shown inFig. 1. The name-plate, which has been embossed, is passed through theopening in the plate E and placed upon the upper flat face of saidclamping member.

The lever is then turned upward into the position shown in Fig. 2,whereby the nameplate will be securely held between the upper face ofsaid member, the rib O and the projection B. By moving the file-carrierback and forth in its way or channel the file will be traversed over thename-plate and remove the coating upon the upper face of the letters,and likewise a portion of the projecting parts of the letters if thefile extend downward toward the clamping member P to a sufficientdegree. If the coating applied to the strip from which the name-platesare made is of a contrasting color the letters, after the coating hasbeen removed from the upper face thereof, will stand out in bold.relief, thereby producing a more attractive article.

Having thus described my invention, what I claim is:

1. In a machine of the character specified, the combination of a fixedbody portion provided withseparated clamping faces against which the.article to be abraded, adjacent to its edges, bears; a clamping membermovable toward said faces; means for actuating and securing said memberin position with the body to be abraded resting thereon and clampedbetween it and the clamping faces of the fixed body; and-an abrasivetool carrier combined clamping and supporting member.

mounted within the opening; means for mov mg said member toward and fromthe clamping faces and securing it in its ad usted position, with thearticle to be abraded clamped between it and said faces; and afile-carrier also mounted in the opening and movable back and forththerein parallel with the work-supporting face of the clamping memher.

3. In a machine of the character specified, the combination of a mainbody portion pro vided with a clamping face; a clamping bed or membercarried by the body and movable toward and from the clamping face; meansfor actuating said member and securing the same in its adjustedposition; a slide mount ed in the body and movable thereinin'parallelism with the work-supporting face of the bed; and a filecarried by the slide.

4. In a machine of the character specified, the combination of a bodyportion provided with a channel; a slide mounted-therein; a,

file adjustably carried by said slide; a clamping bed or member movabletoward and from the file, said member being provided with'a nose orprojection; a lever pivotally supported upon the body portion; and a camcarried by the lever,-said cam coacting with the projection to hold theclamping bed in its elevated position. I

5. In a machine of the character specified,

the combination of a fixed body portion; a clamping bed; a file-carriermovable back and forth over said bed; and a file secured to the carrier,said file ,being higher at its center and having the teeth extending inopposite directions from each side of the center,

whereby the abraded surface will be burnished, substantially asdescribed.

In testimony whereof I have signed my name to this specification 1n thepresence of 1 two subscribing witnesses.

ALFRED W. ROOVERS Witnesses: REMsE RUsHMoRn, HENRY V. RAYMOND.

